Raman lasing near 650nm from pure water microdroplets on a superhydrophobic surface
| Autor: | Alphan Sennaroglu, Alper Kiraz, S. C. Yorulmaz, Mustafa Yorulmaz |
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| Rok vydání: | 2009 |
| Předmět: |
Surface (mathematics)
Laser raman Materials science business.industry Physics::Optics Condensed Matter Physics Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Characterization (materials science) law.invention Physics::Fluid Dynamics symbols.namesake Hardware and Architecture law Excited state symbols Optoelectronics Electrical and Electronic Engineering Whispering-gallery wave business Raman spectroscopy Lasing threshold |
| Zdroj: | Photonics and Nanostructures - Fundamentals and Applications. 7:186-189 |
| ISSN: | 1569-4410 |
| DOI: | 10.1016/j.photonics.2009.03.002 |
| Popis: | We demonstrate Raman lasing near 650 nm in pure water microdroplets located on a superhydrophobic surface. In the experiments, stationary, pure water microdroplets were prepared on a superhydrophobic surface and excited by a pulsed, frequency-doubled Nd:YAG laser at 532 nm. Intense laser emission was observed at frequencies corresponding to the whispering gallery mode resonances of the water microdroplets near 650 nm where Raman resonances due to OH-stretching bonds of water are located. On–off behavior was observed during lasing and the average temporal inter-burst separation was determined from the time-dependent intensity traces. Our results can find applications in the development of novel organic light emitters for short-haul communication systems, and in the spectroscopic characterization of water microdroplets on a surface. |
| Databáze: | OpenAIRE |
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